Gas-regulator



'(NQ Model.)

W. S. PATTERSON.-

GAS REGULATOR.

No. 370,886.- Patented oct. 4.1887.

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N. PETERS, Pham-umarmen wnshngiun, D. c.

UNITED STATES PATENT OFFICE. 2

VILLIAM S. PATTERSON, ALLEGI-IENY CITY, PENNSYLVANIA.

GAS-REGULATOR.

SPECIFICATION forming partV of LettersV Patent No. 370,886, dated October 4, 1887.

Serial No, 217.798. (No model.)

.To all whom, t may concern:

Beit known that I, WILLIAM S. PATTERSON, a citizen of the United States, residing at Allegheny City, in the State of Pennsylvania, haveinvented certain new and useful Improvements in Gas-Regulators, of which the following is a specilication, reference being had therein to the accompanying drawing.v

This invention relates to air and gas regulators; and my object is to provide a device that will automatically regulate the supply of gas or air to a system of pipes in accordance with the requirements.

The invention consists in certain features of construction, hereinafter referred to, and particularly pointed out in the claims.

The drawing represents a central vertical section of a regulator constructed in accord# ance with my invention.

A represents a regulator-chamber, which in this instance has mounted thereon a valvechamber, B.

The form of regulator used is similar tothat shown and claimed in Patent No. 353,081, granted me November 23, 1886; and I deem it proper to state at this point that certain features not herein broadly claimed are described, shown, and claimed in the above-referred-to application.

The chamber A is preferably formed of two substantially hemispherical castings, .A A2, hanged and bolted at A3, as usual. Within the chamber, and conforming somewhat to the interior outline ofthe the same,is the elastic regulator C, one portion of which is removed, as at C', registering with an opening, At, formed in the bottom of the chamber A. A concave clamping-plate, D, apertured, as at D', serves to retain the elastic governor C in position, said plate being held by ordinary bindingscrews, D2, passingl through the bottom of the chamber Ainto the governor and plate.

Mounted upon the chamber A is the valve' chamber B, which is formed with the entrance B and the exit B2, the latter extending into the chamber B and forming a receptacle for the valve. The exit-chamber B2 is formed with diametrically-opposite openings B3, which are centrally arranged within the chamber B. The openings B5 are provided with bushings B4, and the upper one is cut away to form a valve-seat, B3.

Mounted within the bushings and adapted to slide vertically therein is the valve E, the top of which is closed', as at E', and the bottom of which is open and communicates with a chamber, B3. At or about the center of the valve E are formed ports or openings E2, above which are similar ports or openings, E3, the former adapted to register with the exit-chain ber B2 and the latter with the receiving-chamber B.

Screw-threaded into the top of the valve, extending down through the same and the chamber B6; and through a stuffing-box, F, secured within a diaphragm, A3, in the top of the chamber A, is a valve-stem, F, tothe lower end of which is fixed a pressure-plate, F2, which is mounted upon the elastic governor C, the stem being secured within a lug, F3, arl ranged centrally and projecting upwardly from said plate. Aguiding-plate, F4, provided with a collar, F5, adapted to surround the lug F3, and with peripheral shoulder F3, adapted to come into contact with an internal wall and with a shoulder formed on the lower hemisphere, as at A3, serves as additional means to prevent the valve-stem F from binding within Vits stuffing-box and aids in retaining itin a vertical position.

For the purpose of cleaning or repairing the device or any of its adjuncts, the top of the chamber B is provided with a removable screwthreaded plug, B3. In this instance a pipe, D232 (see dotted lines,) extends from the outer end of the chamber B2, or it may be from a pipeleading therefrom, down to and communicates with the opening D in the plate D, thereby forming a means of communication between the exit-chamber and the interior of the elastic governor C. In this instance, also, a small aperture, E, is formed in the head of the valve, for a purpose hereinafter explainedA The operation of this regulator is as follows: supposing, for instance, gas or air is let into the chamber B, it passes into the valve D through the ports E3, outinto the chamber B3 through the ports E2, and also down through the bottom of the valve into the chamber B3. The air or gas being within the chamber Bo and B both above and below the valve-head, it forms a perfect balance-valve, to be regulated by a means which I will now proceed to describe. When the gas or air passes into the IOO chamber B2, it also passes into the pipe DWS, hereinbefore referred to, and down through it into the elastic chamber C. The valve is of course arranged to receive and dispense a normal quantity or pressure of air or gas, and should the supply be below the normal it will be insufficient to distend or inate the elastic chamber or governor C, and the weight of the valve and stem will cause the valve to be drawn down toward its seat. By noting the positionor relative location of the ports or openings E2 E" with relation to each other and with the exit-chamber B2 it will be seen that the ports E2 in such case would be opened to their full extent, so that the gas or air could pass unobstructed into the chamber B2. Now, should the supply wholly be cut off or be insuieient to retain the valve and its adjuncts above its seat, the valve would naturally fall within the seat provided for it. This having occurredd that is, the valve having fallen to its seatwere it not for the provision I have made, when the gas was again turned ou or the supply strong in pressure it would have no way of getting to the elastic governor, and thereby lifting the valve once more and admitting gas or air to the chamber B2. For this reason I have provided a small aperture, E, in the head of the valve, through which a small quantity of air or gas may be admitted, which will gradually expand the governor by passing through the pipe D'* (shown in dotted lines) beneath the governor, so that it will assume a position in accord with the degree of pressure in the main and lift the valve, whereby it will perform its proper function. So long as the port E1 is retained in the valve E said valve will not act to completely cut off the supply, while if said supply is otherwise cut oft' completely the valve E will fall to its lowest position.

Having described my invention and its operation, what I claim is- 1. In a gas and air regulator, the combination of the chambers A and B, one mounted upon the other, the chamber A being provided with an elastic governor and the chamber B comprising an exit and an entrance passage or compartment, 011e contained within the other, and provided with a valve, the stenl of which passes through the wall of the chamber A and bears upon the elastic governor contained therein, and is provided with a weight acting upon the valve and governor and a projection for intereepting the action of the weight, and a pipe, as DPf, connecting with both chambers, substantially as specified.

2. The combination ofthe chamber A, provided with the opening A', with the elastic governor G, having the opening C', and with the convex removable binding-plate D, apertured, as at D', and provided with bolts, substantially as specified.

3. The combination of the chamber A, formed with the shoulders A, with the elastic governor C, the valve-stem F, the plate FZ, and the guiding-plate F, substantially as specified.

4. The combination ot' the chambers B B2, the valve E, having ports FJ' E", with the valverod and governor C, connected directly with the rod for raising the valve from its seat, substantially as and for the purpose described.

5. The combination ofthe chambers B'BZB, the chamber B'l provided with openings and having a bushing, B4, formed with a valveseat, B5, with the valve E, perforated, as at E". for communication with the chamber B, and at E for communication with the chamber B', and perforated, as at E, substantially as and for the purpose specified.

6. The combination of the stem F and stuffingbox F', with the guiding-plate F', having the collar F5 and shoulders F, the pressureplate F2, and with the chamber A, having shoulders A, substantially as specified.

In testimony whereof I affix my signatu re in presence of two witnesses.

XVILLIAM S. PATTERSON.

Vitnesses:

WILLIAM H. MoRToN, WM. H. GONNER. 

